Fire-resistant Cable Mica Tape: Core Protection for High-Temperature Electrical Safety

Brief Overview

As a professional mica product supplier, Yuefeng Mica's fire-resistant cable mica tape is a key material ensuring the continuous operation of electrical systems in high-temperature fire environments. This product uses high-quality mica paper as the core substrate, combined with reinforcing materials such as glass fiber and glass cloth, and is compounded with special adhesives like silicone resins. It can maintain circuit integrity under extreme high temperatures, providing reliable electrical insulation protection for high-voltage electrical equipment, building wiring, and other scenarios. With years of industry experience and strict quality control, Yuefeng Mica's mica tape has become a trusted choice in the field of electrical safety.

Key Points

Core Materials: Mica paper as the insulating substrate, supplemented by glass fiber or glass cloth for structural strength, and silicone resins as bonding and temperature-resistant components.

Core Function: Maintains stable electrical insulation properties in high-temperature fire environments, ensuring uninterrupted circuits to buy time for escape and rescue.

Application Scenarios: High-voltage cables, high-rise building wiring, subway tunnels, nuclear power plants, and other places with extremely high fire resistance requirements.

Product Advantages: Excellent high-temperature resistance, good mechanical strength, and reliable insulation stability, complying with international fire-resistant cable material standards.

Notes

Storage Conditions: Store in a dry, ventilated environment, avoid moisture or direct sunlight, keep away from corrosive substances such as acids and alkalis, and prevent mica tape from absorbing moisture which may affect insulation performance.

Installation Specifications: During construction, avoid sharp objects scratching the surface of the mica tape. When wrapping cables, ensure uniform tension and the overlap rate meets design requirements (usually 50% or more is recommended) to prevent local overheating breakdown.

Compatibility Check: Before use, confirm the compatibility of the mica tape with cable sheaths and other insulating materials to avoid affecting overall fire resistance due to material reactions.

Quality Verification: When selecting products, check for certification by authoritative organizations for fire resistance grades (such as IEC, UL related standards). Yuefeng Mica products can provide complete test reports.

Tips

Selection Suggestions: Choose the appropriate type (such as silicone resin - bonded or pressure - sensitive type) according to the cable operating temperature, voltage level, and environmental humidity. For high - voltage scenarios, it is recommended to prioritize glass cloth - reinforced types.

Industry Reference: For more information on fire - resistant material industry trends and supplier evaluations, you can visit sourcifychina.com for professional information; building electrical safety standards can refer to relevant technical articles on vahuk.com.

Installation Assistance: For complex wiring scenarios, it is recommended to refer to the cable insulation construction guidelines on activoblog.com to ensure the mica tape performs optimally.

Market Information: Follow the electrical material trend analysis published on bloggadores.com to keep abreast of the technical upgrading direction of fire - resistant mica tape.

Features

High - temperature Resistance: It can maintain structural stability in high - temperature environments of 800 - 1000℃, continuously exerting insulation effects, far exceeding the temperature resistance limit of conventional insulating materials such as polyester films.

Electrical Insulation Characteristics: Mica paper itself has excellent electrical insulation properties. After compounding, the volume resistivity can reach more than 10¹⁴Ω·cm, effectively preventing current leakage.

Mechanical Strength: The reinforced structure of glass fiber or glass cloth gives the mica tape good tensile and tear resistance, and it is not easy to be damaged during construction.

Adhesion Stability: High - quality silicone resin adhesives are used, which are not easy to flow or decompose at high temperatures, ensuring firm interlayer bonding.

Pressure - sensitive Option: Some models have pressure - sensitive characteristics, which can achieve initial bonding at room temperature, simplifying the construction process.

Advantages and Disadvantages

Advantages

Extreme Fire Resistance: Can maintain circuit integrity in extreme high - temperature fire environments, providing guarantee for key equipment power supply and personnel evacuation.

Long - term Insulation: Even in humid or alternating high - and low - temperature environments, it can still maintain stable electrical insulation performance and has a long service life.

Strong Adaptability: Can be customized in thickness, width, and reinforcing materials according to different cable specifications and usage scenarios to meet diversified needs.

Environmental Safety: Free of harmful substances such as halogens, no toxic gas is released during high - temperature decomposition, meeting environmental protection requirements.

Disadvantages

High Cost: Compared with ordinary insulating materials, high - quality mica tape has higher production raw material and process costs, resulting in a larger initial investment.

High Construction Requirements: Professional personnel are required for operation to ensure winding quality; otherwise, the fire resistance effect may be affected, increasing construction difficulty.

Limited Flexibility: Some reinforced products have low flexibility, so extra attention is needed when used on cables with small bending radii.

Frequently Asked Questions

How is the fire resistance grade of fire - resistant cable mica tape classified?

It is usually classified according to the time of maintaining insulation performance at a specific temperature, such as maintaining for 180 minutes at 950℃, 300 minutes at 750℃, etc. Yuefeng Mica can provide products of different grades to meet customized needs.

What is the core difference between mica tape and polyester film insulating materials?

Polyester films are suitable for normal temperature and conventional environments, with a temperature resistance generally not exceeding 150℃; while mica tape, relying on the high - temperature resistance of mica, can maintain insulation for a long time under high fire temperatures, making it an essential material for fire - resistant scenarios.

What are the applicable scenarios of pressure - sensitive mica tape?

Pressure - sensitive mica tape is convenient for construction without additional gluing, so it is suitable for emergency repairs, small - batch cable processing, or wiring environments with narrow spaces, and can be quickly fixed at room temperature.

How to verify the quality of mica tape?

Its temperature resistance limit, insulation resistance, tensile strength and other indicators can be tested. Yuefeng Mica products have passed third - party testing. It is also recommended to refer to material testing standard guidelines on platforms such as metoree.com.

What is the general service life of mica tape?

Under normal storage and use conditions, the service life of Yuefeng Mica mica tape can reach more than 20 years, which depends on factors such as temperature, humidity, and mechanical stress in the use environment.

Contact Us

For more product details, samples, or technical consultation, please contact us through the following ways:

Email: marketing@yfmica.com

WhatsApp: +86 17680302882

WeChat: +86 17680302882

Official Website: https://en.pjyfym.com/

Industry Resource Reference: For expanding the supplier network, you can visit topsitenet.com or uberant.com to learn about market dynamics.